Registration Dossier
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EC number: 238-961-5 | CAS number: 14887-42-4
Particle size distribution (Granulometry)
Administrative data
Link to relevant study record(s)
- Endpoint:
- particle size distribution (granulometry)
- Type of information:
- experimental study
- Adequacy of study:
- key study
- Study period:
- Study performed on July 30 2009
- Reliability:
- 1 (reliable without restriction)
- Rationale for reliability incl. deficiencies:
- guideline study
- Qualifier:
- according to guideline
- Guideline:
- OECD Guideline 110 (Particle Size Distribution / Fibre Length and Diameter Distributions)
- Deviations:
- no
- GLP compliance:
- yes (incl. QA statement)
- Type of method:
- determination of fibre length and diameter distributions
- Type of distribution:
- counted distribution
- Percentile:
- D50
- Mean:
- ca. 512.4 µm
- Remarks on result:
- other: Migrated from fields under 'Mass median diameter' as D50 percentile. No source field for Standard deviation.
- Percentile:
- D10
- Mean:
- ca. 254.4 µm
- Remarks on result:
- other: No st. deviation reported
- Percentile:
- D50
- Mean:
- ca. 512.4 µm
- Remarks on result:
- other: No st. deviation reported
- Percentile:
- D90
- Mean:
- ca. 923.6 µm
- Remarks on result:
- other: No st. deviation reported
- Conclusions:
- The study concludes that ca. 10% of particles have a particle size of <254.4 µm and is therefore not considered to present an inhalation risk. This study is considered to be scientifically justified for use as a key study.
Reference
Description of key information
One key study exists. This study (Fieseler A, 2009) was conclusive, done to a valid guideline (OECD TG 110) and the study was conducted under GLP conditions. It is therefore scientifically justified for use as a key study under Regulation (EC) No. 1907/2006.
Additional information
The study concludes that ca. 10% of particles have a particle size of <254.4 µm and is therefore not considered to present an inhalation risk. This study is considered to be scientifically justified for use as a key study.
Information on Registered Substances comes from registration dossiers which have been assigned a registration number. The assignment of a registration number does however not guarantee that the information in the dossier is correct or that the dossier is compliant with Regulation (EC) No 1907/2006 (the REACH Regulation). This information has not been reviewed or verified by the Agency or any other authority. The content is subject to change without prior notice.
Reproduction or further distribution of this information may be subject to copyright protection. Use of the information without obtaining the permission from the owner(s) of the respective information might violate the rights of the owner.
